The town of Staufen, in the south-west of Germany, has a problem: a drilling operation in 2007 that went very wrong. Half a metre of movement might not sound like much, but in this town, that's enough for the buildings to crack and fall apart. Thanks to Constantijn Crijnen for both suggesting the video and being the local expert! His channel's here: https://www.youtube.com/channel/UCJhg... And here's an in-depth academic paper explaining why and how it all happened, in far more detail than would work in a YouTube video: https://doi.org/10.1186/s40517-017-00... I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Snapchat and Instagram as tomscottgo